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Add declaration-level assertions for compile-time checks

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Those new assertions can be used at file scope, outside of any function
for compilation checks.  This commit provides implementations for C and
C++, and fallback implementations.

Author: Peter Smith
Reviewed-by: Andres Freund, Kyotaro Horiguchi, Dagfinn Ilmari Mannsåker,
Michael Paquier
Discussion: https://postgr.es/m/201DD0641B056142AC8C6645EC1B5F62014B8E8030@SYD1217
This commit is contained in:
Michael Paquier
2020-02-03 14:48:42 +09:00
parent 6148e2b9a6
commit f1f10a1ba9
7 changed files with 76 additions and 12 deletions
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39
src/backend/utils/misc/guc.c
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@ -241,6 +241,9 @@ static const struct config_enum_entry bytea_output_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(bytea_output_options) == (BYTEA_OUTPUT_HEX + 2),
"array length mismatch");
/*
* We have different sets for client and server message level options because
* they sort slightly different (see "log" level), and because "fatal"/"panic"
@ -286,6 +289,9 @@ static const struct config_enum_entry intervalstyle_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(intervalstyle_options) == (INTSTYLE_ISO_8601 + 2),
"array length mismatch");
static const struct config_enum_entry log_error_verbosity_options[] = {
{"terse", PGERROR_TERSE, false},
{"default", PGERROR_DEFAULT, false},
@ -293,6 +299,9 @@ static const struct config_enum_entry log_error_verbosity_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(log_error_verbosity_options) == (PGERROR_VERBOSE + 2),
"array length mismatch");
static const struct config_enum_entry log_statement_options[] = {
{"none", LOGSTMT_NONE, false},
{"ddl", LOGSTMT_DDL, false},
@ -301,6 +310,9 @@ static const struct config_enum_entry log_statement_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(log_statement_options) == (LOGSTMT_ALL + 2),
"array length mismatch");
static const struct config_enum_entry isolation_level_options[] = {
{"serializable", XACT_SERIALIZABLE, false},
{"repeatable read", XACT_REPEATABLE_READ, false},
@ -316,6 +328,9 @@ static const struct config_enum_entry session_replication_role_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(session_replication_role_options) == (SESSION_REPLICATION_ROLE_LOCAL + 2),
"array length mismatch");
static const struct config_enum_entry syslog_facility_options[] = {
#ifdef HAVE_SYSLOG
{"local0", LOG_LOCAL0, false},
@ -339,18 +354,27 @@ static const struct config_enum_entry track_function_options[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(track_function_options) == (TRACK_FUNC_ALL + 2),
"array length mismatch");
static const struct config_enum_entry xmlbinary_options[] = {
{"base64", XMLBINARY_BASE64, false},
{"hex", XMLBINARY_HEX, false},
{NULL, 0, false}
};
StaticAssertDecl(lengthof(xmlbinary_options) == (XMLBINARY_HEX + 2),
"array length mismatch");
static const struct config_enum_entry xmloption_options[] = {
{"content", XMLOPTION_CONTENT, false},
{"document", XMLOPTION_DOCUMENT, false},
{NULL, 0, false}
};
StaticAssertDecl(lengthof(xmloption_options) == (XMLOPTION_CONTENT + 2),
"array length mismatch");
/*
* Although only "on", "off", and "safe_encoding" are documented, we
* accept all the likely variants of "on" and "off".
@ -465,6 +489,9 @@ const struct config_enum_entry ssl_protocol_versions_info[] = {
{NULL, 0, false}
};
StaticAssertDecl(lengthof(ssl_protocol_versions_info) == (PG_TLS1_3_VERSION + 2),
"array length mismatch");
static struct config_enum_entry shared_memory_options[] = {
#ifndef WIN32
{"sysv", SHMEM_TYPE_SYSV, false},
@ -615,6 +642,9 @@ const char *const GucContext_Names[] =
/* PGC_USERSET */ "user"
};
StaticAssertDecl(lengthof(GucContext_Names) == (PGC_USERSET + 1),
"array length mismatch");
/*
* Displayable names for source types (enum GucSource)
*
@ -638,6 +668,9 @@ const char *const GucSource_Names[] =
/* PGC_S_SESSION */ "session"
};
StaticAssertDecl(lengthof(GucSource_Names) == (PGC_S_SESSION + 1),
"array length mismatch");
/*
* Displayable names for the groupings defined in enum config_group
*/
@ -749,6 +782,9 @@ const char *const config_group_names[] =
NULL
};
StaticAssertDecl(lengthof(config_group_names) == (DEVELOPER_OPTIONS + 2),
"array length mismatch");
/*
* Displayable names for GUC variable types (enum config_type)
*
@ -763,6 +799,9 @@ const char *const config_type_names[] =
/* PGC_ENUM */ "enum"
};
StaticAssertDecl(lengthof(config_type_names) == (PGC_ENUM + 1),
"array length mismatch");
/*
* Unit conversion tables.
*